tweak some of the code blocks on the troubleshooting page to work better on mobiles

site/_posts/2012-07-01-troubleshooting.md

@@ -50,7 +50,23 @@ On Debian or Ubuntu, you may need to add /var/lib/gems/1.8/bin/ to your path in
 
 ## Base-URL Problems
 
-If you are using base-url option like `jekyll serve --baseurl '/blog'` then make sure that you access the site at `http://localhost:4000/blog/index.html`. Just accessing `http://localhost:4000/blog` will not work.
+If you are using base-url option like:
+
+{% highlight bash %}
+jekyll serve --baseurl '/blog'
+{% endhighlight %}
+
+… then make sure that you access the site at:
+
+{% highlight bash %}
+http://localhost:4000/blog/index.html
+{% endhighlight %}
+
+It won’t work to just access:
+
+{% highlight bash %}
+http://localhost:4000/blog
+{% endhighlight %}
 
 ## Configuration problems
 
@@ -74,7 +90,9 @@ problems.
 If your link has characters that need to be escaped, you need to use
 this syntax:
 
-`![Alt text](http://yuml.me/diagram/class/[Project]->[Task])`
+{% highlight markdown %}
+![Alt text](http://yuml.me/diagram/class/[Project]->[Task])
+{% endhighlight %}
 
 If you have an empty tag, i.e. `<script src="js.js"></script>`, Maruku
 transforms this into `<script src="js.js" />`. This causes problems in